I had some very limited time with my blade CP, I just bought the thing. I bent the drive shaft after crashing it, so it couldn't be trimmed properly, all of the electronics were working just fine, after replacing it, I no longer can get either motors to fire. The battery seems to be fine, all other controls work fine, all servo's are plugged in and working well. Does this thing have 4 in 1 problems? I hate to think, 260.00 into this so far I have to spend another 80 for that part, If so, I'm going to sell the replacement parts, cannabalize it and not get into choppers at all if this is typical in electronics with these, there really isn't much to them construction wise without that main component.